27563984 has 40 divisors (see below), whose sum is σ = 64251840. Its totient is φ = 11190528.

The previous prime is 27563971. The next prime is 27563999. The reversal of 27563984 is 48936572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4349 + ... + 8604.

It is an arithmetic number, because the mean of its divisors is an integer number (1606296).

Almost surely, 2^27563984 is an apocalyptic number.

It is an amenable number.

27563984 is an abundant number, since it is smaller than the sum of its proper divisors (36687856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27563984 is a wasteful number, since it uses less digits than its factorization.

27563984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12987 (or 12981 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 27563984 is about 5250.1413314310. The cubic root of 27563984 is about 302.0744520618.

The spelling of 27563984 in words is "twenty-seven million, five hundred sixty-three thousand, nine hundred eighty-four".